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Q1. | In terms of ABCD parameters, the image parameter Z_{11} is equal to |

A. | AC/BD [Wrong Answer] |

B. | BD/AC [Wrong Answer] |

C. | AB/CD [Correct Answer] |

D. | AD/BC [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ The most commonly used bias in BJT amplifier circuits is

voltage divider bias

emitter bias

collector bias

collector feedback bias

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Poles and zeros of lie an real axis driving point LC network | 1. | lie an real axis |

B. | Canonic LC network has | 2. | a zero |

C. | The number of Canonic networks for the given driving point function | 3. | minimum number of elements |

D. | The first critical frequency nearest the origin for RL driving point impedance | 4. | four |

5. | minimum number of elements | ||

6. | alternate | ||

7. | either a pole or zero | ||

8. | three |

A-1, B-5, C-8, D-7

A-6, B-5, C-3, D-2

A-1, B-5, C-4, D-2

A-1, B-3, C-4, D-7

⇒ A matched generator (Z

_{g}= Z

_{0}) with 1 Ω available. If all ports are matched, the power delivered at ports 1, 2, 3 respectively are

0.5 W, 0.5 W, 0 W

0 W, 0 W, 1 W

0.33 W each

0 W, 0.25 W, 0.25 W

⇒ The circuits with active pull up are preferred because of their stability for

wired - AND operation

wired - OR operation

bus operated system

reasonable dissipation and speed of operation

⇒

Match the following:

List I (Double Rectifier) | List II (Number of Diodes) | ||
---|---|---|---|

A. | Full wave Bridge rectifier | 1. | 1 |

B. | Half wave rectifier | 2. | 2 |

C. | Full wave rectifier using centre tapped transformer | 3. | 4 |

A-1, B-2, C-3

A-3, B-1, C-2

A-2, B-1, C-3

A-3, B-1, C-2

⇒

**Assertion (A):** Hamming code is commonly used for error correction

**Reason (R):** In Hamming code the number of parity bits increases as the number of information bits increases.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is true, R is false

A is false, R is true

⇒ Consider the following statements about mutual inductances:

- The value should remain constant under all conditions.
- The mutual inductance should not vary with temperature.
- The inductance should be independent of excitation.
- They have two coils wound on a bobbin of hard magnetic material, coils being separated by a range.

2, 3, 4

1, 2, 3

1, 3, 4

1, 2, 4

⇒ In the given figure assume that initially Q = 1 with Clock Pulses being given, the subsequent states of Q wil

1, 0, 1, 0, 1......

0, 0, 0, 0, 0......

1, 1, 1, 1, 1......

0, 1, 0, 1, 0......

⇒ A 4 bit parallel type A/D converter uses a 6 volt reference. How many comparators are required and what is the resolution in volts?

0.375 V

15 V

4.5 V

10 V

⇒ For the system of the given figure, the undamped natural frequency of closed loop pole

2 rad/sec

1 rad/sec

0.5 rad/sec

0.25 rad/sec

⇒

**Assertion (A):** SSB systems generally have duplex operation

**Reason (R):** SSB systems are generally used in two way communication.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ A lossless transmission line is connected to two identical voltage source as shown in figu

∞

100

50

25

⇒ Magnitude Plot of a Composite signal

*x*(

*t*) =

*e*

^{2jt}+

*e*

^{3jt}is

half wave rectified sinusoidal

full wave rectified sinusoidal

exponentially increasing sinusoidal

exponentially decreasing sinusoidal

⇒ The Gaussian filter characteristic figure is realiza

TRUE

FALSE

⇒ Symmetrical square wave of time period 100 μs can be obtained from square wave of time period 10 μs by using

divide by 5 circuit

divide by 2 circuit

divide by 5 circuit followed by divide by 2 circuit

BCD counter

⇒ 50 independent low pass signals of bandwidth W, 2W, 3W, W, 2W, 3W, W, 2W, 3W H

*z*are to be time division multiplexer on a common channel using PAM. To achieve this, the minimum transmission capacity of the channel should be __________ .

1 H

*z*

12 H

*z*

3 H

*z*

6 H

*z*

⇒ Y = A + A B is the same as

Y = AB

Y = A + B

Y = A + B

Y = A + B

⇒ Which one is time invariant system?

*y*[

*n*] =

*x*[2

*n*]

*y*[

*n*] =

*x*[

*n*]

*x*[

*n*- 1]

*y*[

*n*] =

*x*[

*n*/2]

all

⇒ A parallel plate capacitor has area of plate A and plate separation

*d*. Its capacitance is C. A metallic plate P of area A and negligible thickness is added as shown in Figure. The new value of capacitance

C

2C

0.5 C

0.25 C

⇒ A half adder adds __________ bits and a full adder adds __________ bits.

two, three

three, four

four, six

two, four

⇒ The organisatioion of Intel memory chip 127256 is

32 K x 8

16 K x 8

32 K x 4

16 K x 4

⇒ Which mode has the lowest cut off frequency in circular wave guides?

TE

_{01}

TE

_{11}

TE

_{20}

TE

_{21}

⇒ IC 74181 performs arithmetic operations when M = 1.

TRUE

FALSE

⇒ A single phase bridge type cycloconverter uses eight thyristors.

TRUE

FALSE

⇒ In Z

_{RC}(

*s*) has a pole at

*s*= ∞, the last element in first Foster realization is

R

C

R and C in series

R and C in parallel

⇒ A wire is carrying current

*I*. The field intensity H at a distance

*r*from the wire

is directed towards wire

is directed away from wire

is tangential every where to a circle of radius

*r*

none of the above

⇒ In a circular waveguide with radius

*r*, the dominant mode is

TM

_{01}

TE

_{01}

TM

_{11}

TE

_{11}

⇒ In 8085 microprocessor, a RIM instruction is used to

disable the interrupts 7.5, 6.5, 5.5

enable the interrupts 7.5, 6.5, 5.5

read in the serial input data

none of the above

⇒ Gold is often diffused into silicon PN junction devices to

increase the recombination rate

reduce the recombination rate

make silicon a direct gap semiconductor

make silicon semimetal

⇒ How many lines are there in address bus of 8085 μp?

6

8

12

16